c3-lang/libbsd/test/bzero.c

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• Hash : 45443583
  Author :
  Date : 2015-09-23T19:37:37
  

  Add explicit_bzero() function from OpenBSD

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• test/bzero.c

• /*
   * Copyright © 2015 Guillem Jover <guillem@hadrons.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
   * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include <assert.h>
  #include <string.h>
  
  int
  main()
  {
  	unsigned char array[40];
  	size_t i;
  
  	memset(array, 0x3e, sizeof(array));
  
  	explicit_bzero(array, 0);
  	for (i = 0; i < sizeof(array); i++)
  		assert(array[i] == 0x3e);
  
  	explicit_bzero(array, sizeof(array));
  	for (i = 0; i < sizeof(array); i++)
  		assert(array[i] == 0);
  
  	return 0;
  }
  

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